Joseph l



April V21, 1925.

J. L. DONAT HEAT RADIATING DEVICE Filed March 5, 1925 #/ZILP (C) C) C@ @D L. ZIV 5 w A zi i EEEEE Patented Apr. 2l, 1925.

Saintes,

' Haafrfeepieriaaevisa.

enligne fileeelfchga ,122% Serial No... 622,667.

T19 v,all "whom t may concern i Beit known that f1; J osEPH L. DoNAT, a

citizen `of the United States, anda resident @fitte City O Chijc'sf in "the County 0f Cook'andState of Illinois, have invented certain new and useful IIr'riprovements ina Heats.Ra-@lietinagDevise;` and I do hereby declare that the following is aiull, kclear, and exact description ofthe saine, vreterence being had to the accompanyingdrawings, and to the numerals ofri'ei'ererice marked thereon, which form a part of this specilication.

This invention relates to heating devices, more particularly for household purposes.

It frequently happens that one or more of the rooms in a house are insuiiciently heated. Moreover, it is often the case that a chimney passes through such room up which chinmey a large amount vof heat escapes.

One of the principal objects of the present invention is to provide means for utilizing a part of this heat which now goes to waste for heating the vair in a room.

Another object of the invention is to provide means for varying the amount of heat transmitted from the chimney gases to the room.

A further object of the invention is to provide an improved form of radiator.

Other and further important objects of this invention will be apparent from the disclosures in the specication and draw ings.

The invention (in a preferred form) is illustrated in the drawings and hereinafter more fully described.

On the drawings:

Figure 1 is a side elevation of a heating device embodying the present improvements.

Figure 2 is a section on the line 2-2 of Figure 1.

Figure 3 is a section on the line 3-3 of Figure 2.

Figure 4 is a vertical section through a portion of a modified form of heater.

As shown on'the drawings:

An entire section of the brick work (not shown) of the chimney, is removed for the insertion in its place of the radiator.

The radiator is preferably formed, as shown, of a plurality of sections, 6, each comprising a central passage 7 in substantial register with the passage through the chimney p properi and tourt. passagesethereearoundsf As many sections `are -used-asemaybe desiredf. Thus where-Tonly a. smallriroomf-.is to be heate'ad@only-2 two ysections ma-y.- lo'e...prr rfJ vided ras shwojwn.4 For a laifge'room,\ or. more may be employedn: i"v

The-walls 9L offthecentral passagetin the bottoni section arefcutaway, as .a.t1=1 while the sidewalls 9:\of tlred-oplsection: are `cut away, as ata-11,'4 toen-able the -chimney gases to low outwardly under the walls 9, through the passages 8 and and then inwardly into the chimney flue at the top of the radiator.

Since the central passage 7 is in substantial register with the passage through adjacent sections of the chimney, the hotgases will normally pass chiey through the passage 7 and only to a very limited extent through the passages 8. Under these circumstances little heat will be radiated into the room. To increase and control the flow of gases through the passages 8, a damper 12 is provided in the central passage 7. This damper is mounted upon a bar 13 provided with a handle 14 by which its position may be adjusted. When the damper is closed all of the gases are compelled to How through the passages 8. In the modified form oi construction shown in Figure 4, the central passage is permanently closed by a plate or diaphragm 20.

The outer passages 8 are formed by the walls 9, continuations or extensions 15 of these walls and radiating walls 16. In each corner between adjacent walls 15 are arranged piers 17 of masonry.

To enable a tight joint to' be made between the piers and the walls 15 the latter are grooved vertically, as at 2l, for the reception of the grouting 22.

The various sections are secured to each other by means of lugs 23 in the corner between the walls 15. These lugs are attached t-o each other by bolts 24.

At the bottom of the lower section and at the top of the higher section, the side walls 16 are extended inwardly to form a base 25 which may rest upon the brickwork and a platform 26 respectively to sup-port the brickwork of the upper part of the chimney. To increase the eltectiveness of the walls 16 as heat radiating surfaces, a series of cones 18 may be formed therein which greatly increase the heat radiating surface.

Inront of each wall 16 is a id 19 which prevents a person from acci entally coming in contact with the highly heated surface of the radiator proper.

I am aware that numerous details of construction may be varied through a. wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted otherwise than necessitated by the prior art. I claim as m invention:

1. A heat ra iating device adapted to replace a section of a chimney, masonry piers at each corner of the radiating device extending between the ortions of the chimney so separated, and heat radiating surfaces arranged between said piers.

2. A heat radiating device adapted to replace a section of a chimney and having a central rectangular Hue providing a nor mally unobstructed straight passage for the chimney gases, passages adjacent each side of said fiue, heat radiating surfaces each forming one wall of one of said passages, means 'for obstructing the iow of such gases through said flue to deflect such gases through said passages, and a masonry pier at each corner of the heating device extending between the portions of the chimney so separated.

In testimony whereof I have `hereunto subscribed my name inthe presence of two subscribing witnesses.

JOSEPH L. DONAT. p

` Witnesses CARLTON HILL,- OscAR HARTMANN. 

